It's a joke that plays well, but becomes less funny the more you scroll through the many examples of events where women weren't included as speakers or presenters at all, or represented a small fraction of the participants.

Mashable contacted and has yet to receive a comment from the creator of the Tumblr.

Mashable also reached out to Georgetown University and the Council on Foreign Relations, which publishes Foreign Affairs. Events hosted by both organizations were included on the blog.

“Diversity in the realm of national security and foreign policy programming is a true priority for Foreign Affairs," Lynda Hammes, the magazine's publisher, said in an email.

"Our objective is to present speakers of the highest expertise who will challenge and inspire our audience. As evidenced by most of our programming, many of those experts are women and we are always looking to increase the frequency of women panelists at our events.”

The pictured panel, with President Barack Obama, took place at Georgetown University on May 12, 2015.

That high-profile events and panels regularly omit women in their lineups isn't new. In 2013, Rebecca Rosen, writing for The Atlantic, criticized the lack of female presenters at tech conferences and proposed a simple solution: Men could refuse to participate in a panel unless a woman or women also appeared on stage as well.

Congrats, You Have an All Male Panel! endorses the same idea and directs readers to the website of Owen Barder, a senior fellow and director for Europe at the Center for Global Development, who asks people to agree to the following pledge: “At a public conference I won’t serve on a panel of two people or more unless there is at least one woman on the panel, not including the chair.”

Barder also addresses skepticism of the pledge, arguing that it's the responsibility of conference organizers to try as hard as possible to find one of the "many brilliant women" who could bring her perspective and expertise to a panel.

If such pledges weren't enough pressure on conference and event planners, then perhaps being shamed, or the threat of being embarrassed by Congrats, You Have an All Male Panel! will convince them to work a little harder for gender equity.

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